| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429494000 | Fluoropolymer | 55 |
| 20100173224 | HYDROPHOBIC FLUORINATED POLYELECTROLYTE COMPLEX FILMS AND ASSOCIATED METHODS - A fuel cell comprising a proton transporting membrane is provided. The proton transporting membrane comprises a polyelectrolyte film comprising a multilayer comprising an interpenetrating network of a net positively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms and a net negatively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms, and further comprising a fluorinated counterion within the multilayer. | 07-08-2010 |
| 20100255407 | ELECTRODE, METHOD OF PREPARING THE SAME, AND FUEL CELL INCLUDING THE SAME - An electrode, a membrane-electrode assembly including the electrode, a fuel cell including the membrane-electrode assembly, and a method of making the same, the electrode including a gas diffusion layer, a catalyst layer, and a water-repellent material having a concentration gradient, disposed at an interface between the gas diffusion layer and the catalyst layer. The water-repellent material may be disposed in a dot pattern. | 10-07-2010 |
| 20100273088 | METHOD FOR PRODUCING -SO3H GROUP-CONTAINING FLUOROPOLYMER AND -SO3H GROUP-CONTAINING FLUOROPOLYMER - The present invention provides a novel production process by which unstable terminal groups can be sufficiently stabilized under mild conditions. The present invention is related to a method for producing an —SO | 10-28-2010 |
| 20100316933 | ELECTROLYTE MEMBRANE - The present invention relates to an electrolyte membrane including a graft polymer having a sulfonic acid group as a proton conductive group, in which, when the electrolyte membrane is divided into four equal parts in a thickness direction thereof, a content of the sulfonic acid group in each of outer regions is larger than a content of the sulfonic acid group in each of inner regions; in which A | 12-16-2010 |
| 20100330456 | Solid polymer electrolyte membrane and production method of the same - An object is to provide a solid polymer electrolyte membrane for solid polymer electrolyte fuel cell, which has high durability, as well as a membrane electrode assembly and a solid polymer electrolyte fuel cell, each containing the same. The solid polymer electrolyte membrane is produced using polymer electrolyte-containing solution preparation step of dissolving a perfluorocarbonsulfonic acid resin (component A) having an ion-exchange capacity of 0.5 to 3.0 meq/g, a polyazole-based compound (component B) and an alkali metal hydroxide in a protic solvent to prepare a polymer electrolyte-containing solution in which a weight ratio of the component A to component B, (A/B), is from 2.3 to 199 and a total weight of the component A and the component B is from 0.5 to 30% by weight. In a membrane formation step, a membrane is formed from the polymer electrolyte-containing solution. | 12-30-2010 |
| 20110045384 | POLYMER ELECTROLYTE WITH AROMATIC SULFONE CROSSLINKING - A method is provided for obtaining crosslinked polymers having pendent sulfonic acid groups by crosslinking through the sulfonic acid groups or their precursors with aromatic crosslinkers or aromatic pendent crosslinking groups to form aromatic sulfones. Such crosslinked polymers may be used to make polymer electrolyte membranes (PEM's) that may be used in electrolytic cells such as fuel cells. | 02-24-2011 |
| 20110065021 | Novel Sulfonic-Acid-Group-Containing Segmented Block Copolymer, Application Thereof, and Method of Manufacturing Novel Block Copolymer - [Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton exchange membrane electrode assembly, and a fuel cell. | 03-17-2011 |
| 20110070525 | ELECTROLYTE COMPOSITION, SOLID ELECTROLYTE MEMBRANE, SOLID POLYMER FUEL CELL AND MANUFACTURING METHOD FOR SOLID ELECTROLYTE MEMBRANE - An electrolyte composition that shows low methanol cross-over and exhibits high proton conductivity when used as a solid electrolyte for solid polymer fuel cells or the like, and a solid electrolyte membrane and a solid polymer fuel cell that use the electrolyte composition are provided. This electrolyte composition comprises a perfluorocyclobutane-containing polymer having a specific structure. High proton conductivity is provided by sulfonic acid groups connected to the benzene rings. Reduction of methanol crossover is realized by introduction of a rigid structure with aromatic rings, or a combination o a rigid structure with aromatic rings and a three-dimensional cross-linked structure. | 03-24-2011 |
| 20110081601 | Nonwoven Fabric Having Cross-Linking Material - A layer includes a main body having a plurality of first pores and at least one crosslinked binder. | 04-07-2011 |
| 20110183237 | ANION CONDUCTING ELECTROLYTE RESIN AND A METHOD FOR PRODUCING THE SAME - The present invention is to provide an anion conducting electrolyte resin with high anion conducting ability and excellent workability, and a method for producing the same. | 07-28-2011 |
| 20110195341 | Method for synthesizing Polymer Electrolyte, Polymer Electrolyte Membrane, and Solid Polymer Electrolyte Fuel Cell - An object of the present invention is to provide a method that is applicable to the production of a polymer electrolyte having high ion-exchange capacity, uniform crosslinking points and improve ionic conductivity, unlike conventional methods. | 08-11-2011 |
| 20110207021 | FUEL CELL ELECTROLYTE MEMBRANE - An electrolyte membrane for a fuel cell includes a fluorine polymer electrolyte having a sulfonic acid group, and a copolymer which includes at least an aromatic ring and a cyclic imide that is condensed or not condensed with the aromatic ring, and in which an aromatic repeating unit having a structure in which the aromatic ring and the cyclic imide are bonded together directly or by only a single atom, is linked with a siloxane repeating unit having a structure that includes a siloxane structure. | 08-25-2011 |
| 20110212382 | High energy density ionic dielectric materials and devices - Dielectric compositions that include compound of the formula [(M′) | 09-01-2011 |
| 20110212383 | LIQUID COMPOSITION, PROCESS FOR ITS PRODUCTION, AND PROCESS FOR PRODUCING MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROYLTE FUEL CELLS - An electrolyte membrane is prepared from a liquid composition comprising at least one member selected from the group consisting of trivalent cerium, tetravalent cerium, bivalent manganese and trivalent manganese; and a polymer with a cation-exchange group. The liquid composition is preferably one containing water, a carbonate of cerium or manganese, and a polymer with a cation-exchange group, and a cast film thereof is used as an electrolyte membrane to prepare a membrane-electrode assembly. The present invention successfully provides a membrane-electrode assembly for polymer electrolyte fuel cells being capable of generating the electric power in high energy efficiency, having high power generation performance regardless of the dew point of the feed gas, and being capable of stably generating the electric power over a long period of time. | 09-01-2011 |
| 20110229797 | Sulfonated-Perfluorocyclobutane Polyelectrolyte Membranes for Fuel Cells - A process for preparing a polymer comprising sulfonating a perfluorocyclobutane polymer with a sulfonating agent to form a sulfonated perfluorocyclobutane polymer, wherein the sulfonating agent comprises oleum, SO | 09-22-2011 |
| 20120028167 | METHOD FOR PREPARING A POROUS POLYIMIDE FILM AND A COMPOSITE MEMBRANE COMPRISING THE SAME - The present invention relates to a method for preparing a porous polyimide film, comprising reacting an aromatic dianhydride with one or more aromatic diamines in a suitable solvent to form poly(amic acid), adding a dehydrated agent of an acid anhydride and an organic base to the reaction mixture to convert the poly(amic acid) to a polyimide precursor, casting the reaction mixture comprising the polyimide precursor onto a solid support to form a film, coagulating the polyimide precursor in a coagulating bath comprising a mixture of a solvent and a non-solvent to develop a porous structure, and drying the coagulated polyimide precursor in air to form the porous polyimide film. A composite membrane comprising same and its use are also provided. | 02-02-2012 |
| 20120040271 | ELECTRODE ELECTROLYTE FOR SOLID POLYMER-TYPE FUEL CELL - An electrode electrolyte for a solid polymer electrolyte-type fuel cell contains a polymer, which has a polyphenylene structure as a main chain and both a sulfonic acid group and a nitrogen-containing heterocyclic group as a side chain. A side chain having the nitrogen-containing heterocyclic group has a structure represented by the following general formula (D). | 02-16-2012 |
| 20120040272 | ELECTROCHEMICAL CELL USING AN IONIC CONDUCTOR - An electrochemical cell includes an electrolyte membrane containing an ionic conductor. The ionic conductor includes:
| 02-16-2012 |
| 20120045711 | SOLID ACID, POLYMER ELECTROLYTE MEMBRANE INCLUDING THE SAME, AND FUEL CELL USING THE POLYMER ELECTROLYTE MEMBRANE - A solid acid having a core of calixarene or calix resorcinarene. The solid acid is an ion conducting compound in which at least one of the hydroxyl groups is substituted by an organic group having a cation exchange group at a terminal end, a polymer electrolyte membrane including the same, and a fuel cell using the polymer electrolyte membrane. The polymer electrolyte membrane can provide low methanol crossover and high ionic conductivity. Accordingly, a fuel cell having high efficiency can be obtained by using the polymer electrolyte membrane. | 02-23-2012 |
| 20120100458 | ION-CONDUCTING MICROPARTICLE AND METHOD OF MANUFACTURING THE SAME, ION-CONDUCTING COMPOSITE, MEMBRANE ELECTRODE ASSEMBLY (MEA), AND ELECTROCHEMICAL DEVICE - There are provided an ion-conducting microparticle including an ion-dissociative group and exhibiting an affinity for a fluorine-containing resin, and a method of manufacturing the same, an ion-conducting composite including the ion-conducting microparticle, a membrane electrode assembly (MEA) including the ion-conducting composite as an electrolyte, and an electrochemical device such as a fuel cell. A reacting molecule | 04-26-2012 |
| 20120107726 | PROCESS FOR PRODUCING FLUORINE CONTAINING POLYMER - According to this invention, a process for producing fluorine containing polymer to obtain composite polymer electrolyte composition having excellent ion transport number, that is, ion transfer coefficient, for example, excellent transport number of lithium ion, is provided. | 05-03-2012 |
| 20120115066 | METHOD FOR STABILIZING POLYELECTROLYTE MEMBRANE FILMS USED IN FUEL CELLS - A novel method of altering extruded membrane films for PEM (polymer electrolyte membrane) fuel cells in such a manner that the membrane films swell substantially uniformly in both the in-plane x and y directions when immersed in water or ionomer solution is disclosed. The invention includes cutting a membrane film from an extruded membrane sheet in a diagonal orientation with respect to the membrane process direction of the membrane sheet. The membrane film exhibits reduced internal stress as compared to conventionally-prepared membrane films and allows a more even distribution of pressure in a fuel cell stack, thereby reducing the incidence of swollen membrane-induced failure mechanisms in the fuel cell stack. | 05-10-2012 |
| 20120129077 | ION-CONDUCTING COMPOSITE ELECTROLYTE MEMBRANE AND FUEL CELL USING THE SAME - An ion-conducting composite electrolyte membrane with strength improved without impairing ionic conductivity, and a fuel cell using the same are provided. The proton conductive composite electrolyte membrane includes an electrolyte which includes an ion-dissociating functional group and is made of a fullerene derivative or sulfonated pitch within a range of 5 wt % to 85 wt % both inclusive, and a binder which has a weight-average molecular weight of 550000 or over and a logarithmic viscosity of 2 dL/g or over, and is made of a fluorine-based polymer such as polyvinylidene fluoride and a copolymer of polyvinylidene fluoride and hexafluoropropylene within a range of 15 wt % to 95 wt % both inclusive. | 05-24-2012 |
| 20120141915 | Process for the Preparation of Sol-Gel Modified Alternative Nafion-Silica Composite Membrane Useful for Polymer Electrolyte Fuel Cell - The present invention provides a process for the preparation of sol-gel modified alternative Nafion-Silica composite membrane useful for polymer electrolyte fuel cell. The said composite membrane is made by embedding silica particles in perfluorosulfonic acid ionomer by a process that circumvents the use of added acid while using acidic characteristics of Nafion and polymerization reaction through a sol-gel route. The composite membrane has high affinity for water with capability to exchange protons. The approach may be used to manufacture polymer electrolyte membrane fuel cells operating at elevated temperatures under near-zero humidity. | 06-07-2012 |
| 20120164558 | BIPHENYLTETRASULFONIC ACID COMPOUND, METHOD FOR PRODUCING SAME, POLYMER AND POLYMER ELECTROLYTE - Provided are a biphenyltetrasulfonic acid compound represented by the formula (1): | 06-28-2012 |
| 20120219879 | PROTON EXCHANGE MEMBRANE COMPRISING POLYMER BLENDS FOR USE IN HIGH TEMPERATURE PROTON EXCHANGE MEMBRANE FUEL CELLS - Use of a proton exchange membrane M in proton exchange membrane fuel cells, wherein the membrane M comprises a blend of (I) at least one polybenzimidazole polymer PBI which comprises, in polymerized form, at least 90 mol-% monomeric units U of formula (I) and/or (II), based on the total amount of monomeric units of the polybenzimidazole polymer PBI, wherein Y is a substituted element selected from O and S; or Y is a single carbon-carbon bond; Z is selected from the group consisting of divalent C | 08-30-2012 |
| 20120231369 | HEXAFLUOROPROPENE-BASED FLUOROSULFONATED ELASTOMERS WITH A LOW GLASS TRANSITION TEMPERATURE, CONTAINING NEITHER TETRAFLUOROETHYLENE NOR A SILOXANE GROUP - The present invention describes the synthesis of new fluorinated elastomers with very low glass transition temperatures (T | 09-13-2012 |
| 20120237850 | ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING BLEND OF POLYMERS WITH DIFFERENT DEGREES OF SULFONATION, AND MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL INCLUDING THE SAME - Disclosed herein is an electrolyte membrane for a fuel cell. The electrolyte membrane includes a blend of polymers with different degrees of sulfonation. The electrolyte membrane can exhibit excellent effects such as improved long-term cell performance and good long-term dimensional stability while at the same time solving the problems of conventional hydrocarbon electrolyte membranes. Further disclosed are a membrane-electrode assembly and a fuel cell including the electrolyte membrane. | 09-20-2012 |
| 20120237851 | PERFLUORINATED ION EXCHANGE RESIN, PREPARATION METHOD AND USE THEREOF - The present invention provides a perfluorinated ion exchange resin, whose structural formula is shown in formula M. The present invention also provides preparation method of the perfluorinated ion exchange resin, comprising subjecting tetrafluoroethylene monomers and two kinds of sulfonyl fluoride-containing vinyl ether monomers in the presence of initiator to ternary copolymerization. The perfluorinated ion exchange resin provided in accordance with the present invention can fulfill the requirements of mechanical strength and ion exchange capacity at the same time and has good thermal stability. | 09-20-2012 |
| 20120276471 | PROTON CONDUCTING MATERIALS - Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers. | 11-01-2012 |
| 20120282541 | HIGH EXCHANGE CAPACITY PERFLUORINATED ION EXCHANGE RESIN, PREPARATION METHOD AND USE THEREOF - The present invention provides a high exchange capacity perfluorinated resin comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures, which is prepared by copolymerizing tetrafluoroethylene, vinyl ether monomers comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures, and vinyl ether monomer comprising bromine-containing pendant group, wherein based on all monomer units in the copolymer, the mol % of tetrafluoroethylene monomer is 50-85%, the mol % of vinyl ether monomers comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures is 5-49% and the mol % of vinyl ether monomer comprising bromine-containing pendant group is 1-10%. Perfluorinated ion exchanges membrane prepared from such perfluorinated resin have resistance to various chemical media, high ion exchange capacity, high conductivity, high mechanical strength, high size stability, low membrane electrical resistance and long service life, and may be applied in fuel cells or high-temperature fuel cells. | 11-08-2012 |
| 20130022894 | ePTFE-Supported Polyelectrolyte Membranes Made with Ionomer-Kynar Blends - A composite membrane for fuel cells includes an expanded polytetrafluoroethylene substrate having a predefined void volume, a first polymer and a second polymer each of which fill at least a portion of the void volume. The first polymer includes the following chemical moiety: | 01-24-2013 |
| 20130022895 | Membrane with Laminated Structure and Orientation Controlled Nanofiber Reinforcement Additives for Fuel Cells - An ion-conducting membrane for fuel cell applications a first layer including a first ion-conducting polymer and nanofibers dispersed therein. The first layer includes a first side and a second side. A second layer is disposed over the first side of the first layer and includes a second ion-conducting polymer without nanofibers. | 01-24-2013 |
| 20130045436 | POROUS MEMBRANE, ELECTROLYTE MEMBRANE INCLUDING SAME, METHODS OF MANUFACTURING BOTH, AND FUEL CELL INCLUDING AT LEAST ONE OF THE MEMBRANES - A porous membrane with pores that includes a polymerization product of a polyazole-based material, an electrolyte membrane including the porous membrane with a proton-conductive polymer provided in pores of the porous membrane, methods of manufacturing the porous membrane and the electrolyte membrane, and a fuel cell employing at least one of the porous membrane and the electrolyte membrane. | 02-21-2013 |
| 20130059230 | CROSS LAMINATED ELECTROCHEMICAL CELL MEMBRANES - A fuel cell proton exchange membrane electrolyte is formed of a first layer ( | 03-07-2013 |
| 20130084516 | Poly(Methyl Methacrylate) Additive to Polyelectrolyte Membrane - An ion-conducting membrane for fuel cells includes an ion-conducting polymer having protogenic groups and poly(methyl methacrylate). Characteristically, the ion-conducting layer is planar having a thickness from 1 microns to 200 microns. A membrane electrode assembly includes the ion-conducting membrane interposed between a cathode layer and an anode layer. | 04-04-2013 |
| 20130101921 | FLUORINE CONTAINING IONOMER COMPOSITE WITH ION EXCHANGE FUNCTION, PREPARATION METHOD AND USE THEREOF - Provided is a composite which is comprised of one or more ion exchange resin(s) and a porous fluorine containing polymer membrane ( | 04-25-2013 |
| 20130177834 | POLYMER ELECTROLYTE AND PREPARATION METHOD THEREOF - Provided are a polymer electrolyte membrane used in fuel cells, and a method for producing the same, the method including a step of filling a crosslinkable ion conductor in the pores of a porous nanoweb support; and a step of crosslinking the ion conductor filled in the pores of the porous nanoweb support. The method for producing a polymer electrolyte membrane uses a relatively smaller amount of an organic solvent, can ameliorate defects of the support caused by solvent evaporation, and can enhance the impregnability of the ion conductor to the support and the convenience of the process. | 07-11-2013 |
| 20130216937 | POLYELECTROLYTE AND PROCESS FOR PRODUCING THE POLYELECTROLYTE - The present invention provides an electrolyte having high conductivity even under high-temperature low-humidification conditions (e.g. at a temperature of 100 to 120° C. and a humidity of 20 to 50% RH) and thereby makes it possible to realize a higher performance fuel cell. The present invention is a fluoropolymer electrolyte having an equivalent weight (EW) of not less than 250 but not more than 700 and a proton conductivity of not lower than 0.10 S/cm as measured at a temperature of 110° C. and a relative humidity of 50% RH and comprising a COOZ group- or SO | 08-22-2013 |
| 20130266890 | SULFONATED POLY(PHENYLENE SULFIDE SULFONE NITRILE) AND MEMBRANE FOR FUEL CELL THEREOF - The present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) and a polymer electrolyte membrane thereof. In particular, the present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) having a triple bond at its both ends and a polymer electrolyte membrane with superior mechanical properties prepared by heating sulfonated poly(phenylene sulfide sulfone nitrile) and forming cross-links between ends of sulfonated poly(phenylene sulfide sulfone nitrile). | 10-10-2013 |
| 20130273457 | PROTON CONDUCTING MATERIALS - Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers. | 10-17-2013 |
| 20130288158 | CO(II)TETRAMETHOXYPHENYLPORPHYRIN ADDITIVE TO PFSA PEMS FOR IMPROVED FUEL CELL DURABILITY - An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such porphyrin-containing compounds. | 10-31-2013 |
| 20130288159 | POLYMER ELECTROLYTE MEMBRANE HAVING ALKYLETHER GRAFT CHAIN - An electrolyte membrane having alkylether graft chains for use in a fuel cell produced by a method of producing an electrolyte membrane for use in a fuel cell, including: performing radiation-induced graft polymerization of a vinyl monomer having nucleophilic functional groups, the vinyl monomer selected from an acylvinyl ether derivative, a styrene derivative, and a methacrylic acid derivative, with a polymer substrate comprising a polymer selected from a fluorine-containing polymer, an olefinic polymer, and an aromatic polymer; deprotecting the nucleophilic functional group, which is protected by an ester bond, of a graft chain on the polymer substrate introduced by the radiation-induced graft polymerization; and introducing an alkylethersulfonic acid structure into the deprotected nucleophilic functional group of the graft chain, by use of an electrophilic reagent selected from cyclic sulfonic acid ester and alkylhalide-sulfonate. | 10-31-2013 |
| 20140004445 | BILAYER COMPLEX PROTON EXCHANGE MEMBRANE AND MEMBRANE ELECTRODE ASSEMBLY | 01-02-2014 |
| 20140017599 | PROCESS FOR THE PREPARATION OF CROSS-LINKED FLUORINATED POLYMERS - A process for the preparation of cross-linked fluorinated polymers comprising sulfonic acid functional groups comprising the steps of: a) providing at least one fluorinated polymer (P) comprising at least one —SO | 01-16-2014 |
| 20140065514 | Polyolefin-PFCB Ionomer - A method of making an ion conducting membrane includes a step of reacting a compound having formula 1 with a polymer having polymer segment 2: | 03-06-2014 |
| 20140093808 | High Durability Fuel Cell Components with Cerium Salt Additives - A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.5 charge equivalents based on the molar amount of acid functional groups present in the polymer electrolyte, more typically between 0.005 and 0.2, more typically between 0.01 and 0.1, and more typically between 0.02 and 0.05. | 04-03-2014 |
| 20140162173 | SULFONATED PERFLUOROCYCLOPENTENYL POLYMERS AND USES THEREOF - An aspect of the invention is directed to a polymer comprising a sulfonated perfluorocyclopentyl compound. Another aspect of the invention is directed to a sulfonated copolymer comprising one or more sulfonated polymers. A further aspect of the invention is directed to membranes prepared from the polymers of the claimed invention. | 06-12-2014 |
| 20140377687 | REDOX FLOW SECONDARY BATTERY AND ELECTROLYTE MEMBRANE FOR REDOX FLOW SECONDARY BATTERY - An object of the present invention is to provide a redox flow secondary battery being low in the electric resistance and excellent in the current efficiency as well, and further having the durability. The present invention relates to an electrolyte membrane for a redox flow secondary battery, the electrolyte membrane containing an ion-exchange resin composition containing a fluorine-based polyelectrolyte polymer, and having an ion cluster diameter of 1.00 to 2.95 nm as measured in water at 25° C. by a small angle X-ray method, and to a redox flow secondary battery using the electrolyte membrane. | 12-25-2014 |
| 20150340721 | ELECTROLYTE MEMBRANE, DISPERSION AND METHOD THEREFOR - A method of producing an electrolyte membrane includes providing a dispersion solution that has a crosslinked perfluorinated ionomer material and a linear perfluorinated ionomer material dispersed in a carrier fluid or mixture carrier fluids. The crosslinked perfluorinated ionomer material has an equivalent weight of 750 g/mol or less with respect to proton exchange acid groups. The linear perfluorinated ionomer material has an equivalent weight of 750 g/mol or more with respect to proton exchange as acid groups. At least a portion of the carrier fluid or fluids is removed from the dispersion solution to thereby form an electrolyte membrane with the crosslinked perfluorinated ionomer material and the linear perfluorinated ionomer material. | 11-26-2015 |
| 20160031782 | CROSS-LINKED POLYMER ELECTROLYTE MEMBRANES AND CROSSLINKING MONOMER - Bifunctional styrenated crosslinkable monomers are produced by functionalizing a linear chain diol with styrene, the linear chain diol being a diol with linear chain fluorinated segments or a linear chain hydrocarbon diol. Crosslinked polymers are produced by polymerizing the styrene-based comonomer with the bifunctional styrenated crosslinkable monomers. Polymer electrolyte membranes are produced from the crosslinked polymers. Crosslinking a bifunctional fluorinated monomer with a sulfonic acid bearing comonomer produces crosslinked polymers and membranes there from with very high acid content and strong polymer structure. | 02-04-2016 |
| 20160036082 | CROSS-LINKED POLYMER ELECTROLYTE MEMBRANES - Crosslinked polymers are produced by polymerizing a styrene-based comonomer with a bifunctional styrenated crosslinkable monomer comprising the following straight chain formula: CH | 02-04-2016 |
| 20160064764 | POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY COMPRISING POLYMER ELECTROLYTE MEMBRANE AND FUEL CELL COMPRISING MEMBRANE ELECTRODE ASSEMBLY - The present specification provides a polymer electrolyte membrane, a membrane electrode assembly including the polymer electrolyte membrane, and a fuel cell including the membrane electrode assembly. | 03-03-2016 |
| 20160204459 | POROUS NAFION MEMBRANE AND METHOD FOR PREPARING THE SAME | 07-14-2016 |
| 20160254559 | PRESSURE-SENSITIVE ADHESIVE SHEET FOR CONVEYING ELECTROLYTE MEMBRANE AND METHOD USING SAID PRESSURE-SENSITIVE ADHESIVE SHEET TO MANUFACTURE FUEL-CELL MEMBRANE ELECTRODE ASSEMBLY | 09-01-2016 |
